DOtick is a free Android app developed by Dortmunder Stadtwerke AG that provides a convenient way to purchase tickets for public transportation in the whole of VRR and beyond. With DOtick, users can purchase tickets for themselves or friends and family, including the DeutschlandTicket and eezy.vrr, the simple tariff to drive off in the whole of NRW. The app offers cashless payment options, allowing users to pay quickly and comfortably without cash.

To use DOtick, users need to register with their email address and a password before making their first purchase. The app also requires users to activate location services to use eezy.vrr, which can affect the battery charge level of the smartphone. If users have any questions about the app or their account, they can contact customer service at